Potential benefits of a non-linear stiffness in an energy harvesting device

By R. Ramlan, M. Brennan, Brian R. Mace, Ivana Kovacic. 2010

471 citations recorded by the source corpus.

Subfields: Civil and Structural Engineering, Electrical and Electronic Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/58e70724ef43eb571b25487ee066b6968580eaeb

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In Civil and Structural Engineering

In Electrical and Electronic Engineering

In Mechanical Engineering

Citations in the corpus

Improving functionality of vibration energy harvesters using magnets (2012, methodology): “Ramlan et al. (2010) investigated the hardening mechanism of a monostable nonlinear energy harvester via analytical and numerical studies.”
Non-linear piezoelectric vibration energy harvesting from a vertical cantilever beam with tip mass (2012, background): “The key aspect of the non-linear harvesters is the use of a double potential well function, so that the device will have two equilibrium positions (Cottone et al., 2009; Ferrari et al., 2010; Mann and Owens, 2010; Quinn et al., 2011; Ramlan et al., 2010).”
Broadband piezoelectric power generation on high-energy orbits of the bistable Duffing oscillator with electromechanical coupling (2011, background): “[19] along with snapthrough in a bistable mass–spring–damper mechanism.”
Bistable vibration energy harvesters: A review (2013, background): “Later, numerical studies (Gammaitoni et al., 2009; Ramlan et al., 2010) implemented a model of an oscillator with a quartic bistable potential well and showed that bistable energy harvesters can provide more energy than its linear counterparts, for broadband vibration inputs of low frequencies.”
Piezoelectric buckled beams for random vibration energy harvesting (2012, background): “Subsequently, other research groups verified that bistable harvesters show enhanced performance when excited by periodic excitation [19, 20] or under wide bandwidth vibrations away from the resonant frequency [21].”
Improved Energy Harvesting from Wideband Vibrations by Nonlinear Piezoelectric Converters (2009, unknown): “[22] shows an enhancement in the generated power, for this specific system, when the excitation is at frequencies lower than the linear resonance, due to the intrinsic square-wave displacement response of the bistable system.”
Toward Broadband Vibration-based Energy Harvesting (2010, methodology): “This is similar to the snap-through setup by Ramlan et al. (2010), except that the distance A-A0 can be modulated at frequency ! and, hence, the potential barrier is modulated.”
Novel piezoelectric bistable oscillator architecture for wideband vibration energy harvesting (2013, unknown): “The potential benefits of a nonlinear stiffness in an energy harvester has been theoretically discussed by Ramlan et al [7].”
Survey on broadband techniques for vibration energy harvesting (2013, background): “Ramlan et al. (2009) describe a general nonlinear energy scavenger as an SDOF system with the equation of motion m€z+ d _z+ f zð Þ= m€y ð2Þ where f (z) is a conservative nonlinear spring force.”